CN102931036A - Circuit device and drawer breaker with same - Google Patents
Circuit device and drawer breaker with same Download PDFInfo
- Publication number
- CN102931036A CN102931036A CN2011102251566A CN201110225156A CN102931036A CN 102931036 A CN102931036 A CN 102931036A CN 2011102251566 A CN2011102251566 A CN 2011102251566A CN 201110225156 A CN201110225156 A CN 201110225156A CN 102931036 A CN102931036 A CN 102931036A
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- collet
- plug
- chuck
- client terminal
- breaker body
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- 230000003068 static effect Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 8
- 229910052709 silver Inorganic materials 0.000 abstract description 5
- 239000004332 silver Substances 0.000 abstract description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a circuit device and a drawer breaker. The breaker comprises a drawer frame and a breaker body. The circuit device comprises a wire inlet end client terminal, a wire outlet end client terminal, a fixed contact connected with the client terminal at one end, a plug connected with the client terminal at the other end, a moving contact finger and a chuck, wherein the wire inlet end client terminal, the wire outlet end client terminal, the fixed contact connected with the client terminal at one end and the plug connected with the client terminal at the other end are arranged on the drawer frame; the moving contact finger and the chuck are arranged on the body; when the breaker body is pushed into the drawer frame, the plug is inserted into the chuck, the moving contact finger can rotate relative to the chuck, and the moving contact finger and the fixed contact are closed or opened; and when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck. By optimizing the structure of the conventional circuit device, the length of the circuit device is reduced, and contact points are reduced, so that the size of a product is reduced, and the consumption of power, copper and silver is reduced.
Description
Technical Field
The present invention relates to a circuit device and a circuit breaker including the same, and more particularly, to a circuit device in a withdrawable circuit breaker and a withdrawable circuit breaker including the same.
Background
The withdrawable circuit breaker is a circuit breaker commonly used in low-voltage power distribution equipment at present, and a schematic diagram of the withdrawable circuit breaker is shown in fig. 1. In fig. 1, 1 denotes the entire circuit breaker, which is composed of a drawer frame 10 and a circuit breaker body 20. The breaker body 20 is pulled out or pushed in from the drawer frame 10 through a guide rail installed on the drawer frame, so that disconnection and communication between the breaker and the inlet and outlet end busbars are realized. Fig. 1 represents the state in which the breaker body 20 is drawn out from the drawer 10.
In the related art, a circuit device of a withdrawable circuit breaker is shown in fig. 2 and 3. Fig. 2 is a schematic view of a state in which the circuit device in the prior art withdrawable circuit breaker 1 is in a state in which the breaker body 20 is withdrawn from the withdrawing frame 10; fig. 3 is a schematic view of a circuit device in a prior art withdrawable circuit breaker in a state where the breaker body 20 is pushed into the cradle 10.
As shown in fig. 2, the related art circuit device is composed of a portion provided on the breaker body 20 and a portion provided on the drawer frame 10. Among them, the portion provided on the breaker body 20 includes: a fixed contact 206, a movable contact finger 207, a wire inlet terminal plug 204 arranged on a fixed contact gasket 205 and a wire outlet terminal plug 204 'arranged on a movable contact gasket 205'. The fixed contact 206 and the movable contact finger 207 are respectively connected with the inlet terminal plug 204 and the outlet terminal plug 204 'through a fixed contact pad 205 and a movable contact pad 205'. Wherein the movable contact fingers 207 are mounted on a movable contact mounting block (not shown) forming a movable contact member. The part arranged on the drawer frame 10 comprises: a line end cartridge 203, a line end cartridge 203 ', a line end cartridge holder bracket 202 ', a line end customer terminal 101, and a line end customer terminal 101 '. The incoming terminal collet 203 and the outgoing terminal collet 203 'are respectively mounted on the incoming terminal collet holder 202 and the outgoing terminal collet holder 202', and the incoming terminal collet holder 202 and the outgoing terminal collet holder 202 'are respectively connected with the incoming terminal customer terminal 101 and the outgoing terminal customer terminal 101'. Each part in the circuit device can be provided with 3 groups or 4 groups according to the requirements of the application occasion, and the 3-pole circuit breaker or the 4-pole circuit breaker corresponds to the part. In each circuit device, a plurality of sets of the inlet terminal chuck 203 and the outlet terminal chuck 203' are provided, respectively, depending on the magnitude of the current.
The customer's busbars (including a line end busbar and a line end busbar, not shown) are connected to the line end customer terminal 101 and the line end customer terminal 101', respectively. As shown in fig. 3, when the breaker body 20 is pushed into the cradle 10, the incoming terminal plug 204 and the outgoing terminal plug 204 'are respectively inserted into the incoming terminal chuck 203 and the outgoing terminal chuck 203' on the cradle 10, so as to communicate the breaker with the incoming and outgoing terminal busbars, and the elasticity of the chucks ensures reliable contact. When the movable contact is closed, the current passes through the inlet terminal bus bar through the inlet terminal customer terminal 101 → the inlet terminal clamp bracket 202 → the inlet terminal clamp 203 → the inlet terminal plug 204 → the fixed contact pad 205 → the fixed contact 206 → the movable contact finger 207 → the pigtail (not shown) → the movable contact pad 205 ' → the outlet terminal plug 204 ' → the outlet terminal clamp 203 ' → the outlet terminal clamp bracket 202 ' → the outlet terminal customer terminal 101 ' → the outlet terminal bus bar (wherein the wiring can be reversed, and the inlet terminal and the outlet terminal are interchanged).
Such a structure has the disadvantages of long current path, many contact points, large contact resistance, high power consumption, complex structure and large product size. In addition, because all the conductive parts in the circuit device are made of pure copper, the plating layer is silver plating, and the structure of the circuit breaker is 3 poles or 4 poles, a large amount of copper and silver materials are needed, and the price of the metal materials is increased, so that the product with the structure has the defect of high cost.
Therefore, there is a need to solve these problems.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a circuit device which can be simple in structure, small in size, less in contact points, low in power consumption, and less in copper and silver consumption.
The invention provides a circuit device, which is used in a drawer type breaker comprising a drawer frame and a breaker body, wherein the circuit device comprises: the system comprises a client terminal at a wire inlet end, a client terminal at a wire outlet end, a fixed contact connected with the client terminal at one end, a plug connected with the client terminal at the other end, a moving contact finger and a chuck. The incoming line end client terminal, the outgoing line end client terminal, the static contact connected with the client terminal at one end and the plug connected with the client terminal at the other end are arranged on the drawing frame, and the moving contact finger and the chuck are arranged on the breaker body. When the breaker body is pushed into the drawing frame, the plug is inserted into the chuck, and the movable contact finger can rotate relative to the chuck to be closed or disconnected with the fixed contact; when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck.
The invention also provides a circuit device, which is used in a drawer type circuit breaker comprising a drawer frame and a breaker body, wherein the circuit device comprises: the system comprises a client terminal at a wire inlet end, a client terminal at a wire outlet end, a fixed contact connected with the client terminal at one end, a chuck connected with the client terminal at the other end, a moving contact finger and a plug. The incoming line end client terminal, the outgoing line end client terminal, the static contact connected with the client terminal at one end and the chuck connected with the client terminal at the other end are arranged on the drawing frame, and the moving contact finger and the plug are arranged on the breaker body. When the breaker body is pushed into the drawing frame, the plug is inserted into the chuck, and the moving contact finger can rotate relative to the plug to be closed or disconnected with the fixed contact; when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck.
The invention also provides a drawer type circuit breaker comprising the two circuit devices.
The circuit device of the invention reduces the length of the circuit device and reduces the contact points by optimizing the structure of the existing circuit device, thereby reducing the size of the product, reducing the power consumption and reducing the consumption of copper and silver.
Drawings
Other aspects, features and advantages will be readily appreciated, as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings.
Fig. 1 is a perspective view of a withdrawable circuit-breaker;
fig. 2 is a schematic view of a circuit device in a prior art withdrawable circuit breaker in a state where a breaker body is withdrawn from a drawer frame;
fig. 3 is a schematic view of a circuit apparatus in a prior art withdrawable circuit breaker in a state where a breaker body is pushed into a cradle;
fig. 4 is a schematic view of a circuit device in the drawer type circuit breaker according to the embodiment of the present invention in a state where the breaker body is drawn out from the drawer frame;
fig. 5 is a schematic view of a circuit device in the drawer type circuit breaker according to the embodiment of the present invention in a state where the breaker body is pushed into the drawer frame;
fig. 6 is a schematic view showing a movable contact finger and a collet connected by a pigtail in a circuit device in a withdrawable circuit-breaker according to an embodiment of the present invention;
fig. 7 is a schematic view of a structure of a clip in a circuit device in a withdrawable circuit breaker according to an embodiment of the present invention.
The drawings are intended to depict example embodiments of the disclosure, and should not be interpreted as limiting the scope thereof. The drawings are not to be considered as drawn to scale unless explicitly indicated.
Detailed Description
The present invention will now be described in detail with reference to the drawings and detailed description.
Fig. 4 and 5 are schematic diagrams of circuit devices according to embodiments of the present invention. Fig. 4 is a schematic view of a circuit device in the withdrawable circuit breaker according to the embodiment of the present invention in a state where the breaker body is withdrawn from the cradle; fig. 5 is a schematic view of a circuit device in the drawer type circuit breaker according to the embodiment of the present invention in a state where the breaker body is pushed into the drawer frame.
In the circuit device according to the embodiment of the present invention shown in fig. 4 and 5, compared with the circuit device of the related art, the circuit device of the present invention differs in the following parts in the circuit breaker drawer 10: the inlet end collet holder 202, the outlet end collet holder 202', the inlet end collet 203 are omitted and the outlet end collet is disposed on the body 20, hereinafter denoted by reference numeral 203 "; the fixed contact 206 is connected to the incoming line terminal customer terminal 101 through the fixed contact pad 205, that is, the fixed contact 206 is disposed on the circuit breaker drawing frame 10. An outlet plug 204 "is provided at the location of outlet cartridge holder 202'. The incoming line end client terminal 101 and the outgoing line end client terminal 101' are not modified compared with the circuit device in the prior art. The difference in the body 20 portion is: the inlet terminal plug 204, outlet terminal plug 204 ', and movable contact pad 205' are omitted, the stationary contact 206 is disposed on the drawer frame 10, and the outlet terminal clamp 203 ″ is disposed on the body 20 and rotatably connected to the movable contact through a pigtail (not shown) and a mounting structure to be described later. The movable contact fingers 207 are unchanged from prior art circuit arrangements.
As can be seen, in the circuit device according to the embodiment of the present invention, the portion on the breaker drawer frame 10 includes: a line inlet end customer terminal 101, a stationary contact pad 205, a stationary contact 206, a line outlet end plug 204 "and a line outlet end customer terminal 101'. The portion on the circuit breaker body 20 includes: a movable contact finger 207, an outlet terminal clamp 203 ". In addition, the wire can be reversely connected during wire connection, so that the wire outlet end and the wire inlet end can be interchanged. That is, in the circuit device of the present embodiment, the portion provided on the breaker draw frame includes the following components: the system comprises a client terminal of an incoming line end and an outgoing line end, a static contact connected with the client terminal at one end and a plug connected with the client terminal at the other end; the part provided on the circuit breaker body includes the following components: a moving contact finger matched with the fixed contact and a chuck matched with the plug. When the body is pushed into the drawer frame, the plug is inserted into the chuck, and the movable contact finger can rotate relative to the chuck to be closed or disconnected with the fixed contact; when the body is drawn out of the drawing frame, the plug is separated from the chuck.
After the busbar is installed on the rack 10, as shown in fig. 5, when the breaker body 20 is pushed into the rack 10 and the moving contact and the static contact are closed, the current flows from the incoming busbar through the incoming customer terminal 101 → the static contact pad 205 → the static contact 206 → the moving contact 207 → the outgoing terminal clamp 203 "→ the outgoing terminal plug 204" → the outgoing customer terminal 101 and finally to the outgoing busbar (wherein the wiring can be reversed, and the incoming terminal and the outgoing terminal are interchanged).
As can be seen in fig. 4 and 5, the clip 203 "is mounted to the movable contact mounting block 208 by a clip mounting block 209. The relative position of the clamping head 203 "and the clamping head mounting rack 209 is fixed, and the relative position of the movable contact finger 207 and the movable contact mounting rack 208 is fixed. The clamp mounting bracket 209 and the movable contact mounting bracket 208 are rotatably connected to each other, and the movable contact mounting bracket 208 can rotate with respect to the clamp 203 ″ about the connection point, so as to close and open the movable contact finger 207 and the fixed contact 206. The mechanical connection between the movable contact fingers 207 and the clamp 203 "is not limited to the specific connection described in the present embodiment, and various ways of achieving the rotatable connection between the movable contact fingers and the clamp can be easily realized by those skilled in the art.
Fig. 4 and 5 show the mechanical connection relationship between the movable contact finger 207 and the collet 203 ", and fig. 6 is a schematic diagram of the electrical connection relationship between the movable contact finger 207 and the collet 203". As shown in fig. 6, the movable contact finger 207 and the clip 203 "are connected by a pigtail 210 to enable relative movement of the movable contact finger 207 and the clip 203" during closing and opening of the circuit breaker. The material of the braided wire 210 is generally copper, and other metal materials with good conductivity can be selected. In the present embodiment, the pigtail 210 is connected to the movable contact finger 207 and the clamping head 203 "by welding, but various other connecting methods that can be easily conceived by those skilled in the art can be used to connect the pigtail 210 to the movable contact finger 207 and the clamping head 203".
The collet 203 "in this embodiment is different from the prior art collet in structure. The prior art collet 203 or 203' is a bi-directional clamping collet with components inserted on both sides of the collet and both sides of the collet being clamped. In this embodiment, however, only one side is inserted with the member, and therefore a one-way clamping collet is required.
Fig. 7 is a schematic view of a structure of a clip in a circuit device in a withdrawable circuit breaker according to an embodiment of the present invention. As shown in fig. 7, the collet 203 "includes two sets of collet fingers 2031, a collet mounting plate 2032 (for the sake of convenience of description, only a left half is shown, and a right half is symmetrical to the left half), two shafts 2033, and two spring strips 2034. Wherein a plurality of metal sheets are overlapped to form a set of chuck fingers 2031, the chuck mounting plate 2032 is used to fix the metal sheets together to form the chuck fingers 2031, two axial holes 2036 are provided on the chuck mounting plate 2032 (the left half has the shaft 2033 inserted therein, only one of the right half can be seen), the shaft 2033 is inserted into the axial holes 2036, so that when the chuck 203 "is spread, the two sets of chuck fingers 2031 rotate around the two shafts 2033. Additionally, the shaft 2033 is used to mount the collet 203 "on the collet mount 209. The spring tabs 2034 are used to apply an inward spring force to the collet 203 "when the collet is spread apart, causing the collet 203" to grip the plug 204 ". The number of the spring pieces 2034 is not limited to two, and a plurality of spring pieces may be stacked on each side. Since the collet 203 "is a one-way clamping collet, unlike the prior art collet in which the spring tabs contact the collet fingers on both the upper and lower sides, the upper portions of the spring tabs 2034 on the collet 203" do not contact the collet fingers and do not exert a resilient force on the upper portions, as shown in fig. 7. The collet mounting plate 2032 is further provided with a stopper 2035 (for convenience of explanation, only the left half is shown, and the right half is symmetrical thereto) for limiting the range of movement of the upper portions of the collet fingers 2031, and for preventing the distance between the two sets of collet fingers 2031 from being smaller than a predetermined value when the upper portions of the collet fingers 2031 are opened and the lower portions thereof are closed inward. In addition, when the lower portions of the collet fingers 2031 are opened outward to apply a force to the lower portions of the spring tabs 2034, the stopper portions 2035 may apply a balancing moment to the spring tabs that is opposite to the collet moment to restrict the rotation of the spring tabs 2034 so that the spring tabs may effectively apply a resilient force to the lower portions of the collet fingers 2031.
As can be seen in fig. 7, the clamping force of the collet is derived from force F2 'acting on collet fingers 2031 by spring tabs 2034, and F2' is a reaction force to force F2 acting on spring tabs 2034 by collet fingers 2031. The force applied to the spring piece 2034 by the stopper portion 2035 is F1. When the circuit breaker body 10 is inserted into the cradle 20, the collet fingers 2031 are spread to push the spring pieces 2034 to rotate, and the spring pieces 2034 cannot rotate continuously and are stabilized at a balanced position because of the limitation of the limiting parts 2035. In this position, the forces acting on the spring 2034 from F2 and F1 are equal, allowing the clamp 203 "to clamp the plug on the drawer frame 20 with a certain clamping force. F1 and F2 are both outward forces, F1+ F2 is F0, and F0 is a force applied to the spring piece 2034 by the side surface of the chuck mounting plate 2032.
The collet configuration of fig. 7 is for illustrative purposes only and various other configurations of one-way collets as would be readily apparent to one skilled in the art may be used, such as spring tabs 2034 may be substituted by strip springs wrapped around collet fingers 2031.
In addition, it will be apparent to those skilled in the art that the positions of the plug and the collet in this embodiment may be interchanged. The plug is inserted into the chuck when the body is pushed into the drawer frame, and the movable contact finger can rotate relative to the chuck to be closed or disconnected with the static contact; when the body is drawn out of the drawing frame, the plug is separated from the chuck. Such a solution also achieves the object of the invention. As can be seen from the above description, the formed circuit arrangement, compared to the circuit arrangement in the existing circuit breaker, omits the plugs at both ends and the cartridge holder and the cartridge at one end, greatly simplifies the structure, reduces the contact points, reduces the contact resistance, and reduces the volume, enabling a more flexible layout in the power distribution cabinet. Since both parts need to be made of copper, omitting both parts also saves copper consumption, reducing costs. Moreover, the improvement fully utilizes the devices in the existing circuit breaker, and no additional design and any processing part are needed, and no modification is needed to be carried out on other parts of the existing circuit breaker.
In describing the embodiments illustrated in the drawings, specific terminology is employed for the sake of clarity. However, the disclosure of this patent specification is not intended to be limited to the specific terminology so selected, and it is to be understood that each specific element includes all technical equivalents that operate in a similar manner and achieve a similar result.
It will be obvious that the same may be varied in many ways with respect to some embodiments of the invention that have been thus described. Such variations are not to be regarded as a departure from the scope of the invention, and all such modifications are intended to be included within the scope of the invention.
Claims (14)
1. A circuit device is used in a drawer type breaker comprising a drawer frame and a breaker body, wherein,
the circuit device comprises: a client terminal at the incoming line end, a client terminal at the outgoing line end, a static contact connected with the client terminal at one end, a plug connected with the client terminal at the other end, a moving contact finger and a chuck,
wherein,
the incoming line end client terminal, the outgoing line end client terminal, the fixed contact connected with the client terminal at one end and the plug connected with the client terminal at the other end are arranged on the drawing frame, and the moving contact finger and the chuck are arranged on the breaker body;
when the breaker body is pushed into the drawing frame, the plug is inserted into the chuck, and the movable contact finger can rotate relative to the chuck to be closed or disconnected with the fixed contact;
when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck.
2. The circuit device of claim 1, wherein the clip and the movable contact finger are electrically connected by a conductive pigtail.
3. The circuit arrangement of claim 1, wherein the clip is mounted on a clip mounting, the movable contact fingers are mounted on a movable contact mounting, and the clip mounting and the movable contact mounting are rotatably coupled.
4. A circuit device is used in a drawer type breaker comprising a drawer frame and a breaker body, wherein,
the circuit device comprises: a client terminal at the incoming line end, a client terminal at the outgoing line end, a static contact connected with the client terminal at one end, a chuck connected with the client terminal at the other end, a moving contact finger and a plug,
wherein,
the incoming line end client terminal, the outgoing line end client terminal, the fixed contact connected with the client terminal at one end and the chuck connected with the client terminal at the other end are arranged on the drawing frame, and the moving contact finger and the plug are arranged on the breaker body;
when the breaker body is pushed into the drawing frame, the plug is inserted into the chuck, and the moving contact finger can rotate relative to the plug to be closed or disconnected with the fixed contact;
when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck.
5. The circuit device of claim 4, wherein the plug and the movable contact fingers are electrically connected by an electrically conductive pigtail.
6. The circuit device of claim 1 or 4, wherein the clip is a one-way clamped clip.
7. The circuit device according to claim 6, wherein the collet comprises two sets of collet fingers, a collet mounting plate, two shafts, and a spring plate, the collet mounting plate is used for fixing the collet fingers, two shaft holes are formed on the collet mounting plate for inserting one of the two shafts respectively, the two sets of collet fingers rotate around one of the two shafts respectively when the collet is spread, the spring plate is used for applying inward elastic force to the collet when the collet is spread, a limiting part is further formed on the collet mounting plate for limiting the movable range of the part of the collet fingers which are not spread, and a balancing moment opposite to the moment of the collet is given to the spring plate when the collet is spread.
8. A drawer type circuit breaker comprises a circuit breaker body and a drawer frame, wherein,
the drawer frame comprises: the inlet wire end customer terminal, outlet wire end customer terminal, the static contact of being connected with one end customer terminal and the plug of being connected with other end customer terminal, the circuit breaker body contains: a moving contact finger and a chuck;
when the breaker body is pushed into the drawing frame, the plug is inserted into the chuck, and the movable contact can rotate relative to the chuck to be closed or disconnected with the fixed contact;
when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck.
9. The withdrawable circuit breaker according to claim 6, wherein the clip and the movable contact finger are electrically connected with each other through a conductive pigtail.
10. The withdrawable circuit-breaker according to claim 6, wherein said cartridge is mounted on a cartridge mounting, said movable contact fingers are mounted on a movable contact mounting, and said cartridge mounting and said movable contact mounting are rotatably connected.
11. A drawer type circuit breaker comprises a circuit breaker body and a drawer frame, wherein,
the drawer frame comprises: the fixed contact that inlet wire end customer terminal, outlet wire end customer terminal, be connected with one end customer terminal and the chuck of being connected with other end customer terminal, the circuit breaker body contains: a moving contact finger and a plug;
when the breaker body is pushed into the drawing frame, the plug is inserted into the chuck, and the moving contact can rotate relative to the plug to be closed or disconnected with the fixed contact;
when the breaker body is drawn out of the drawer frame, the plug is separated from the chuck.
12. The withdrawable circuit breaker according to claim 6, wherein the plug and the movable contact finger are electrically connected with each other through a conductive pigtail.
13. The withdrawable circuit-breaker according to claim 8 or 11, wherein the clip is a one-way clamping clip.
14. The withdrawable circuit breaker according to claim 13, wherein the collet comprises two sets of collet fingers, a collet mounting plate, two shafts and a spring plate, the collet mounting plate is used for fixing the collet fingers, two shaft holes are provided on the collet mounting plate for inserting one of the two shafts, the two sets of collet fingers are rotated around each of the two shafts when the collet is spread, the spring plate is used for applying an inward elastic force to the collet when the collet is spread, a limit part is further provided on the collet mounting plate for limiting a movable range of a portion where the collet fingers are not spread, and a balance moment opposite to a moment of the collet is given to the spring plate when the collet is spread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110225156.6A CN102931036B (en) | 2011-08-08 | 2011-08-08 | Circuit device and drawer breaker with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110225156.6A CN102931036B (en) | 2011-08-08 | 2011-08-08 | Circuit device and drawer breaker with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102931036A true CN102931036A (en) | 2013-02-13 |
| CN102931036B CN102931036B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110225156.6A Active CN102931036B (en) | 2011-08-08 | 2011-08-08 | Circuit device and drawer breaker with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN102931036B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094011A (en) * | 2013-02-25 | 2013-05-08 | 北京人民电器厂有限公司 | Electric connection structure of switch device |
| CN106129885A (en) * | 2016-08-19 | 2016-11-16 | 天津市百利电气有限公司 | Frame-type isolator |
| WO2017186060A1 (en) * | 2016-04-29 | 2017-11-02 | 首瑞（天津）电气设备有限公司 | Electric connection device for draw-out circuit breaker and draw-out circuit breaker |
| CN112701014A (en) * | 2019-10-23 | 2021-04-23 | 北京京人电器有限公司 | Chuck device and plug-in circuit breaker |
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| CN101093932A (en) * | 2006-06-21 | 2007-12-26 | 三菱电机株式会社 | Pull-out breaker |
| CN102118009A (en) * | 2010-01-05 | 2011-07-06 | 北京人民电器厂有限公司 | Electric connection mechanism used for plug-in circuit breaker |
| CN202258835U (en) * | 2011-08-08 | 2012-05-30 | 施耐德电器工业公司 | Circuit device and drawer-type circuit breaker with same |
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2011
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0926793A1 (en) * | 1997-12-18 | 1999-06-30 | Schneider Electric Sa | Terminal for clamping and connector module for disconnectable circuit breaker |
| CN101093932A (en) * | 2006-06-21 | 2007-12-26 | 三菱电机株式会社 | Pull-out breaker |
| CN102118009A (en) * | 2010-01-05 | 2011-07-06 | 北京人民电器厂有限公司 | Electric connection mechanism used for plug-in circuit breaker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094011A (en) * | 2013-02-25 | 2013-05-08 | 北京人民电器厂有限公司 | Electric connection structure of switch device |
| CN103094011B (en) * | 2013-02-25 | 2016-02-10 | 北京人民电器厂有限公司 | A kind of electric connection structure of switching device |
| WO2017186060A1 (en) * | 2016-04-29 | 2017-11-02 | 首瑞（天津）电气设备有限公司 | Electric connection device for draw-out circuit breaker and draw-out circuit breaker |
| CN106129885A (en) * | 2016-08-19 | 2016-11-16 | 天津市百利电气有限公司 | Frame-type isolator |
| CN112701014A (en) * | 2019-10-23 | 2021-04-23 | 北京京人电器有限公司 | Chuck device and plug-in circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN102931036B (en) | 2015-06-24 |
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